The CMKD-0630C Series is an ultra-high-current SMD Molded Inductor in a 7.0 mm × 6.6 mm footprint with a 3.0mm profile. This series is distinguished by its Carbonyl iron powder core ("C" material), which enables exceptionally high saturation performance.

This series is engineered for maximum current density, offering an extremely high saturation current (Isat) of up to 60.0A and an ultra-low DCR (down to 1.7mΩ max). This makes it a premier choice for challenging power conversion inductor applications. The CMKD-0630C's one-piece, magnetically shielded construction ensures low EMI and minimal core loss, making it a superior choice for high-frequency (up to 5MHz) VRMs. This model is one of the lowest resistance options available, truly a low dcr inductor.

Key Features

Carbonyl Iron Powder Core: Utilizes "C" material for maximum saturation current.

Extremely High Saturation Current: Rated up to 60.0A.

Ultra-Low DCR: As low as 1.7mΩ (max) for highest efficiency.

Low Profile: 3.0mm maximum height.

Molded Construction: Magnetically shielded for low EMI.

High Frequency Operation: Suitable for frequencies up to 5MHz.

Halogen-Free & RoHS Compliant.

Operating Temperature: -55°C to +125°C.

Applications

The CMKD-0630C's elite current handling, achieved through its carbonyl iron powder core, is designed for the most demanding power circuits:

High-Performance Voltage Regulator Module (VRM)

Multi-phase regulators

Server and graphic card power

Point-of-load (POL) modules

Electrical Characteristics

Part No.	Inductance (L₀) (µH) (±20%)	Test condition	DCR (mΩ) TYP.	DCR (mΩ) MAX.	Isat (A) TYP.	Idc (A) TYP.
CMKD-0630C-R10M	0.10	100 kHz, 1V	1.5	1.7	60.0	32.5
CMKD-0630C-R15M	0.15	100 kHz, 1V	2.0	1.7	52.0	30.0
CMKD-0630C-R20M	0.20	100 kHz, 1V	3.0	2.4	41.0	24.0
CMKD-0630C-R22M	0.22	100 kHz, 1V	2.5	2.8	40.0	23.0
CMKD-0630C-R33M	0.33	100 kHz, 1V	3.9	3.5	30.0	20.0
CMKD-0630C-R47M	0.47	100 kHz, 1V	4.0	4.2	26.0	17.5
CMKD-0630C-R56M	0.56	100 kHz, 1V	5.0	4.7	25.5	16.5
CMKD-0630C-R68M	0.68	100 kHz, 1V	5.0	5.5	25.0	15.5
CMKD-0630C-R75M	0.75	100 kHz, 1V	6.2	5.4	24.5	14.0
CMKD-0630C-R82M	0.82	100 kHz, 1V	6.7	8.0	24.0	13.0
CMKD-0630C-1R0M	1.0	100 kHz, 1V	9.0	10.0	22.0	11.0
CMKD-0630C-1R2M	1.2	100 kHz, 1V	10.0	12.0	20.0	10.0
CMKD-0630C-1R5M	1.5	100 kHz, 1V	15.0	14.0	18.0	9.0
CMKD-0630C-2R0M	2.0	100 kHz, 1V	16.0	18.0	14.0	8.2
CMKD-0630C-2R2M	2.2	100 kHz, 1V	20.0	18.0	14.0	8.0
CMKD-0630C-2R5M	2.5	100 kHz, 1V	22.0	20.0	14.0	7.0
CMKD-0630C-3R3M	3.3	100 kHz, 1V	30.0	28.0	13.5	6.0
CMKD-0630C-4R7M	4.7	100 kHz, 1V	37.0	40.0	10.0	5.5
CMKD-0630C-6R8M	6.8	100 kHz, 1V	54.0	60.0	8.0	4.5

Notes:

Test Conditions: All test data is referenced to 25°C ambient.

Operating Temperature Range: -55°C to +125°C (ambient plus self-temperature rise).

Isat (Saturation Current): DC current (A) that will cause L₀ to drop approximately 30%.

Idc (Rating Current): DC current (A) that will cause an approximate ΔT of 40°C.

Temperature Limit: The part temperature (ambient + temp rise) should not exceed 125°C under worst-case operating conditions.

Performance Graphs

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Shape and Dimensions

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Reliability

This product is qualified against a series of mechanical and endurance tests, including Solder Heat Proof, Thermal Shock, Humidity Resistance, and Vibration. (See PDF page 24 for full details).

Packaging

Packaging: Embossed Carrier Tape

Reel Diameter: 330 mm

Tape Width: 16 mm

Quantity/Reel: 1500 pcs

Solder Reflow Profile

Preheat condition: 150~200°C / 60~120 sec.

Allowed time above 217°C: 60~90 sec.

Max temp: 260°C (compliant with J-STD-020D)

Max time at max temp: 10 sec.

Allowed Reflow time: 2x max

Solder paste: Sn/3.0Ag/0.5Cu
(Note: This profile is for qualification only. Actual profiles must be based on the customer's specific board design and process.)